Cisco ASA 5510 Quick Start Manual page 18

Choose 255.255.255.224 from the Mask drop-down menu.
6.
Select the DMZ interface from the Translate Address on Interface drop-down menu.
7.
Click Dynamic in the Translate Address To section.
8.
Choose 200 from the Address Pools drop-down menu for the Pool ID.
9.
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Click OK
10.
A dialog box appears asking if you want to proceed. Click Proceed
11.
On the NAT Translation Rules page, check the displayed configuration for accuracy.
12.
Click Apply to complete the adaptive security appliance configuration changes.
13.
The displayed configuration should be similar to the following:
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